The shower extension hose is professionally designed to provide convenience for showering, washing hair or spraying down the walls. It is extensible with extra lengthfor easily rinsing shower walls or tub, bathing pets, makes showering or cleaning easier.
Medical face mask materials covered under these specifications shall be designated as one or more of the following performance classes based on the barrier performance properties of the materials used in medical face masks.
1) 400-470MHZ full broadband (frequency range, and people more wide frequency more convenient, compatibility stronger),2) The hand (ChiJi 5W high power, call distance is more security),3) The radio functions: can automatic, also can direct input frequency